Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
m-base.co.jp
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 08:27:20 UTC · ↺ Refresh
MX Hostnames
- smtp.google.com
MX Priorities
- smtp.google.com: 1
A / AAAA Records
- 49.212.233.216 ↩ 216.233.212.49.static.www5688m.sakura.ne.jp
- 2401:2500:101:43:49:212:233:216
Mail Server IPs
- 172.253.115.27 ↩ bg-in-f27.1e100.net
- 172.253.122.26 ↩ bh-in-f26.1e100.net
- 172.253.122.27 ↩ bh-in-f27.1e100.net
- 172.253.63.26 ↩ bi-in-f26.1e100.net
- 172.253.63.27 ↩ bi-in-f27.1e100.net
- 2607:f8b0:4004:c09::1b ↩ bh-in-f27.1e100.net
- 2607:f8b0:4004:c08::1a ↩ bi-in-f26.1e100.net
- 2607:f8b0:4004:c06::1b ↩ bg-in-f27.1e100.net
- 2607:f8b0:4004:c09::1a ↩ bh-in-f26.1e100.net
SOA Record
Raw SOA
master.dns.ne.jp tech.sakura.ad.jp 2026011902 3600 900 3600000 3600
Primary NS (mname)
master.dns.ne.jp
Admin Email (rname)
tech@sakura.ad.jp
Serial
2026011902
Refresh
3600s
Retry
900s
Expire
3600000s
Minimum TTL
3600s
Nameservers (NS)
ns1.dns.ne.jp
ns2.dns.ne.jp
SPF Record
✓ Soft Fail (~all)
v=spf1 +ip4:49.212.233.216 +ip4:219.94.128.64 +ip4:219.94.192.16 a:www5688m.sakura.ne.jp include:_spf.activegate-ss.jp mx include:_spf.google.com include:spf.bmv.jp ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; aspf=r; adkim=r; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
google._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 +ip4:49.212.233.216 +ip4:219.94.128.64 +ip4:219.94.192.16 a:www5688m.sakura.ne.jp include:_spf.activegate-ss.jp mx include:_spf.google.com include:spf.bmv.jp ~all
- google-site-verification=-F8ZIb5KzflBcXTAWfy2CTHwPdkMhScl0yOe4KPfwRc
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